Cari van Schalkwyk, PhD

Senior Researcher

Research theme: Combatting Infections of National Priority

Cari van Schalkwyk studied Mathematical Statistics at the University of Stellenbosch and started her relationship with SACEMA in 2007 through her Masters project on estimating mean duration of recent HIV infection. She started working at SACEMA as a Statistician in November 2010 and has been involved in projects related to HIV, TB, COVID, HPV and cervical cancer. Her PhD work (with Dr Leigh Johnson at the University of Cape Town) focused on HIV and HPV transmission dynamics, the natural history of HPV and the impact of different vaccination and screening strategies on cervical cancer incidence in South Africa.
She serves as faculty and on the executive committee of the International Clinics on Infectious Disease Dynamics and Data Program (ICI3D) and leads the secretariat of the UNAIDS Reference Group on Estimates, Modelling, and Projections (epidem.org).

ORCID ID: 0000-0001-5154-1390

Recent publications

Facility-based indicators to manage and scale up cervical cancer prevention and care services for women living with HIV in sub-Saharan Africa: a three-round online Delphi consensus method
Davidović M, Asangbeh SL, Taghavi K, Dhokotera T, Jaquet A, Musick B, van Schalkwyk C, Schwappach D, Rohner E, Murenzi G, Wools-Kaloustian K, Anastos K, Omenge OE, Boni SP, Duda SN, von Groote P, Bohlius J, International Epidemiology Databases to Evaluate AIDS

Journal of Acquired Immune Deficiency Syndromes

(2024)

https://doi.org/10.1097/QAI.0000000000003343
Updated data and methods for the 2023 UNAIDS HIV estimates
van Schalkwyk C, Mahy M, Johnson LF, Imai-Eaton JW

Journal of Acquired Immune Deficiency Syndromes

(2024)

https://doi.org/10.1097/QAI.0000000000003344
The role of wastewater-based epidemiology for SARS-CoV-2 in developing countries: cumulative evidence from South Africa supports sentinel site surveillance to guide public health decision-making
Iwu-Jaja C, Ndlovu NL, Rachida S, Yousif M, Taukobong S, Macheke M, Mhlanga L, van Schalkwyk C, Pulliam JRC, Moultrie T, le Roux W, Schaefer L, Pocock G, Coetzee LZ, Mans J, Bux F, Pillay L, de Villiers D, du Toit AP, Jambo D, Gomba A, Groeninck S, Madgewick N, van der Walt M, Mutshembele A, Berkowitz N, Suchard M, McCarthy K

Science of the Total Environment

(2023)

https://doi.org/10.1016/j.scitotenv.2023.165817
Differential in-hospital mortality and intensive care treatment over time: Informing hospital pathways for modelling COVID-19 in South Africa
Jamieson L, van Schalkwyk C, Nichols BE, Meyer-Rath G, Silal SP, Pulliam JRC, Blumberg L, Cohen C, Moultrie H, Jassat W

PLoS Global Public Health

(2023)

https://doi.org/10.1371/journal.pgph.0001073
Neonatal sepsis: Challenges in data access, harmonisation and analysis to inform empirical antibiotic recommendations in South African neonatal units
Bolton L, Bekker A, Govender N, van Schalkwyk C, Whitelaw A, Dramowski A

South African Journal of Public Health

(2023)

https://doi.org/10.7196/SHS.2023.v6.i2.175
Impact of interventions for tuberculosis prevention and care in South Africa – a systematic review of mathematical modelling studies
Brown L, van Schalkwyk C, de Villiers AK, Marx FM

South African Medical Journal

(2023)

https://doi.org/10.7196/SAMJ.2023.v113i3.16812
Neonatal sepsis: challenges in data access, harmonization and analysis to inform empiric antibiotic recommendations in South African neonatal units
Bolton L, Bekker A, Govender N, van Schalkwyk C, Whitelaw A, Dramowski A

SACEMA Preprint

(2022)

https://doi.org/10.13140/RG.2.2.34471.42407
Increased risk of SARS-CoV-2 reinfection associated with emergence of Omicron in South Africa
Pulliam JRC, van Schalkwyk C, Govender N, von Gottberg A, Cohen C, Groome MJ, Dushoff J, Mlisana K, Moultrie H

Science

(2022)

https://doi.org/10.1126/science.abn4947
Bounding the levels of transmissibility & immune evasion of the Omicron variant in South Africa
Pearson CAB, Silal SP, Li MWZ, Dushoff J, Bolker BM, Abbott S, van Schalkwyk C, Davies NG, Barnard RC, Edmunds WJ, Bingham JL, Meyer-Rath G, Glass A, Wolter N, Govender N, Stevens W, Scott L, Mlisana K, Moultrie H, Pulliam JRC

medRxiv

(2021)

https://doi.org/10.1101/2021.12.19.21268038
SARS CoV-2 reinfection trends in South Africa: analysis of routine surveillance data
Pulliam JRC, van Schalkwyk C, Govender N, von Gottberg A, Cohen C, Groom M, Dushoff J, Mlisana K, Moultrie H

medRxiv

(2021)

https://doi.org/10.1101/2021.11.11.21266068